Allium punctum |
Allium fibrillum |
|
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dotted onion, punctate onion |
Blue Mountain onion, Cuddy Mountain onion, fringe onion |
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Bulbs | 1–3, not clustered on stout primary rhizome, ovoid to subglobose, 1–2 × 0.9–1.7 cm; outer coats enclosing 1 or more bulbs, brown to yellow-brown or gray, membranous, ± prominently cellular-reticulate, cells in ± regular vertical rows, narrowly rectangular, transversely elongate, without fibers; inner coats white, cells obscure, narrowly rectangular, transversely elongate, or quadrate. |
1–5+, without cluster of basal bulbels, not clustered on stout primary rhizome, ± globose, 0.5–1.2 × 0.5–1 cm; outer coats enclosing 1 or more bulbs, brownish, membranous, reticulate; cells very fine, often obscure, narrow, ± transversely elongate, intricately contorted, without fibers; inner coats white to pink, cells obscure, transversely elongate, intricately contorted. |
Leaves | usually deciduous with scape, green or withering only at tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 9–18 cm × 2–3 mm, margins entire. |
usually persistent, withering from tip by anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, ± falcate, linear, channeled, 7–24 cm × 0.5–3 mm, margins entire. |
Scape | usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, ± flattened, not winged, 3–10 cm × 1–2 mm. |
persistent, solitary, erect, solid, terete or slightly flattened to very narrowly winged, 3–15 cm × 0.5–2 mm. |
Umbel | persistent, erect, ± compact, 6–20-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 6–9-veined, lanceolate to ovate, ± equal, apex acute to abruptly acuminate. |
persistent, erect, compact, 10–20-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, 2, 4–6-veined, ovate, ± equal, apex acuminate. |
Flowers | narrowly campanulate, 6–13 mm; tepals erect, white to pinkish with narrow to very broad, purple midvein, oblong-lanceolate, ± equal, becoming papery, investing capsule in fruit, margins entire, apex obtuse; stamens included; anthers light yellow; pollen yellow; ovary crested; processes 3, central, low, rounded, broad, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 5–11 mm. |
campanulate, 5–8 mm; tepals erect, white with prominent greenish or pink midribs, lanceolate, ± equal, becoming papery in fruit, margins entire, apex obtuse to acuminate, ± involute at tip; stamens included; anthers yellow; pollen yellow; ovary crestless or obscurely crested; processes 3, low, rounded, margins entire; style linear, equaling stamens; stigma capitate, unlobed; pedicel 3–10 mm. |
Seed | coat dull; cells smooth. |
coat dull or shining; cells smooth. |
2n | = 14. |
= 14. |
Allium punctum |
Allium fibrillum |
|
Phenology | Flowering May–Jun. | Flowering May–Jul. |
Habitat | Sandy, rocky, or clay soils on open slopes and flats | Moist, shallow soils |
Elevation | 1300–1600 m (4300–5200 ft) | 300–2600 m (1000–8500 ft) |
Distribution |
CA; NV; OR
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ID; MT; OR; WA
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Discussion | Allium fibrillum closely resembles A. madidum but does not have a cluster of basal bulbels. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 26, p. 270. | FNA vol. 26, p. 266. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. collinum | |
Name authority | L. F. Henderson: Rhodora 32: 23. (1930) | M. E. Jones ex Abrams: in L. Abrams and R. S. Ferris, Ill. Fl. Pacific States 1: 393. (1923) |
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